Serena Williams Ancestry Is From Nigeria?

Serena Williams’s Half-Sister Is Called Yetunde

I know Serena simply had an amazing slam and she is the most talk about of the town, despite the fact that I know she has denied being Nigerian on a few event, however checking through her maternal side she has a sister called yetunde (Her page on Wikipedia: https://en.wikipedia.org/wiki/Murder_of_Yetunde_Price) and Aisha, I don’t have the foggiest idea, so I am putting it out there, anybody know whether she is Nigerian? (also, yes we are famzing!)